cnbugs
4c8b7b5188
Add per-instance/user access whitelist
Features:
- New Instance.AccessMode: "open" (default) or "whitelist"
- New Instance.AllowNetworks + VPNUser.AllowNetworks: list of CIDRs
- Effective whitelist = instance allow_networks ∪ user allow_networks (dedup)
- Auto-generates client-connect.sh / client-disconnect.sh for OpenVPN:
* Reads ccd/<cn> to extract CIDRs
* Pushes "route <ip> <mask>" to client (client side)
* Inserts iptables ACCEPT rules in FORWARD chain (server side, defense in depth)
* Cleans up rules on disconnect
- server.conf auto-includes client-connect / client-disconnect directives
and push "redirect-gateway def1 bypass-dhcp" in whitelist mode
- ccd/<cn> file format: first line ifconfig-push (static IP), then one CIDR per line
- Editing instance allow_networks refreshes all users' ccd automatically
- New PUT /api/instances/:id/users/:uid endpoint
- CIDR format validation; reject malformed inputs with friendly errors
- Dashboard shows whitelist_instances count and per-instance allow_networks table
Docs:
- README: new section "三、访问控制(白名单模式)" with usage, validation, pitfalls
- docs/API.md: updated Instance / VPNUser model + create/update payloads
- Renumbered client usage section as 四
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